International Atomic Energy Agency

The United Nations' nuclear watchdog, founded in 1957 to promote peaceful uses of nuclear technology while verifying that member states' programs are not diverted toward weapons — the body behind the safeguards regime, the formal accident investigations, and the published reports the vault keeps returning to as its highest-tier institutional source on nuclear history. It first entered the vault as the custodian receiving Kazakhstan's airlifted highly-enriched uranium in Project Sapphire; it recurs as author of its own 1988 accident report on Goiânia, read directly (not through a Wikipedia paraphrase) for the accident's casualty figures and causal mechanism.

References

• claim-project-sapphire-1994-airlifted-kazakh-heu-declassified-report
• claim-prussian-blue-was-deployed-at-scale-in-the-1987-goiania-cesium-137-accident
• claim-goiania-1988-iaea-report-249-contaminated-112000-monitored
• claim-goiania-1988-iaea-report-four-deaths-cytogenetic-dose-4-5-to-6-gy
• claim-goiania-1988-iaea-report-mechanism-abandoned-cesium-137-teletherapy-source